行程天線 的英文怎麼說

中文拼音 [hángchéngtiānxiàn]
行程天線 英文
path-length antenna
  • 行 : 行Ⅰ名詞1 （行列） line; row 2 （排行） seniority among brothers and sisters:你行幾? 我行三。where...
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 行程 : 1 （路程） route or distance of travel; distance of run; length of travel; distance travelled; jo...
  1. Widening of the grf to dual 2 - lane carriageway

    擴闊加士居道行車天橋為雙程雙線分隔車道
  2. Since complicated differential and integral operations were involved in the kernel of the integral equation, we simplified the equation and got the nakano equation. as instances, the planar archimedean spiral antenna, the planar equiangular spiral antenna, the monofilar helical antenna, the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method. all of the results matched fairly well with the references and experiment results

    這種方法的積分方程的積分核里含有復雜的微積分運算，為了簡化計算，本文在推廣的海倫積分方程的基礎上，對方程進行了簡化，推導了nakano方程，並以平面阿基米德螺旋天線，平面等角螺旋天線，軸向模圓柱螺旋天線，具有固定升角的圓錐螺旋天線和圓錐等角螺旋天線為例，用矩量法求解了天線上的電流分佈，研究了螺旋天線輻射的寬頻帶特性，所得的結果均與參考文獻吻合很好。
  3. In this paper, the signal processing of sum and difference patterns of amplitude dual - plane monopulse radar and the effect of amplitude - plane non - consistency are analyzed from the coordinates relationship of four - horn antenna at length, and its corresponding simulation is verified, which bring convenience to engineering implementation

    文中從四喇叭天線的位置坐標關系，詳細分析了雙平面振幅和差式單脈沖雷達信號處理過程以及三通道幅相不一致性的影響，並且進行了相應的模擬，為工程實現帶來了很大的便利。
  4. This article takes the application of pa and antenna in wlan as the clue, and makes research and experiment implement of the non - linear distortion occurring in pa and networking antenna technique

    本文以雙向功放和天線在wlan中的應用為線索，對雙向功放在使用過程中出現的非線性失真問題和組網天線技術進行了理論研究和實驗模擬。
  5. Major projects under planning include the traffic improvements to tuen mun road town centre section, reconstruction and improvement to tuen mun road, widening of the tolo highway fanling highway between island house interchange and fanling, the central - wanchai bypass and the island eastern corridor link, improvement to island eastern corridor between causeway bay and north point, central kowloon route, widening of gascoigne road flyover, route 4 between kennedy town and aberdeen and retrofitting of noise barriers on 8 existing road sections. hk - zhuhai - macao bridge hk project management office

    而籌劃中的項目有屯門公路市中心段交通改善工程屯門公路重建及改善工程舊政務司官邸附近道路交匯處與粉嶺之間的吐露港公路粉嶺公路擴闊工程中環及灣仔繞道和東區走廊連接路銅鑼灣至北角的東區走廊改善工程中九干線加士居道行車天橋擴闊工程四號干線堅尼地城至香港仔及加建隔音屏障工程於八條現有道路。
  6. On one hand, the focal point that the interface circuit is designed lies in lining up the arrangement of the aerial data, have adopted one pair of ports ram to cooperate with the counter and realize the lining up of the data, on the other hand, interface focal point that circuit design transmission of data, part this finish mainly and interface of linkport of dsp, make data transmisst to dsp processor at a high speed, go on follow - up punish

    一方面，介面電路設計的重點在於對天線數據的整理排隊，採用了雙埠ram配合計數器實現數據的排隊，另一方面，介面電路設計的重點是數據的傳輸，這部分主要完成和dsp的linkport的介面，使數據高速傳給dsp處理器，進行后續處理。這個項目按照自上而下的設計流程，從系統劃分、編寫代碼、 rtl模擬、綜合、布局布線，到fpga實現。
  7. To improve this ability, a higher cross - range resolution is needed. an inverse synthetic aperture radar ( isar ) achieves high resolution in the cross - range dimension by taking advantage of the motion between radar and targets to synthesize the effect of a larger antenna aperture

    逆合成孔徑雷達（ inversesyntheticapertureradar ，簡稱isar ）信號處理對接收到的運動目標的回波信號進行相干處理，等價成一個大口徑天線，很大程度上提高了方位向距離分辨力。
  8. To increase the bearing accuracy of amplitude - comparison, the multi - channel system was chosen, the angle of reaching of moving antenna pattern serial was estimated from the frequency domain using the phase - delay estimating method, and at the same time, the selection of antenna, quantization of signal and touch switches were optimized in concrete engineering practice, and so the requirement of the index was satisfied

    為提高比幅測向的精度，選用多通道體制，採取相位延時估計法從頻域來估算移動天線方向圖系列的達到角，同時在具體的工程實現上對天線選取、信號的量化、去摸開關等進行優化，從而滿足指標要求。
  9. On the base of above it, this paper discuss the synthesis of optimum distributed arrays by nonuniform spacing in the sense of dolph - chebyshev. having derived the equations of optimum element distribution, we analyze the exponentially spaced array, which are optimum when the elements are isotropic and equally weighted, and the array by general raised cosine function. the formulate for estimating the sidelobe envelope, beamwidth of the array pattern and clean region width are obtained

    推導了最佳陣元分佈方程，分別對陣元無方向性和等加權時的最佳分散式陣列? ?指數間隔陣列和採用廣義升餘弦加權的最佳分散式陣列進行了分析，推導了天線方向圖旁瓣包絡、波束寬度，干凈掃描區寬度的估計公式，給出了近軸旁瓣電平與陣列參數的關系。
  10. Based on research of the antenna assemble procedure, the simulation model of the reflector is set up and error modeling and simulation of position of stick holes, grid bar acrossing the hole and rms of reflector face are achieved

    在分析柵格天線裝配過程基礎上，建立了其反射面裝配的模擬模型，並對柵支板中心圓孔位置誤差、柵條穿人誤差和柵面誤差進行了建模與模擬計算。
  11. Considering the one - sidedness and inaccuracy of knowledge discovery only from single - color database, an approach is proposed to discover knowledge from 1331 groups of mix - color database with partial least - square regression, based on measuring and learning 400 groups of single - color database. by this method, the mean error decreases when converting from rgb to cmyk, the precision of color matching is improved, and the automatic and general problem in color matching is further solved

    本文基於統計學習理論構造了一種快速自適應隨機搜索演算法，證明了演算法的收斂性.給出了一種簡易實用的寬帶天線匹配設計新方法.應用該自適應演算法進行天線匹配設計，不僅演算法簡單，易於編程實現;而且能夠快速設計出具有較好性能的匹配網路，非常適用於各種短波、超短波天線的匹配設計問題
  12. There was a story about a master who went to different countries to give lectures. one of the disciples who had the heavenly eye open traced the master s tour on a map

    這位明師到不同的國家講經說法，有一位徒弟用天眼查看他師父的行程路線，知道師父所前往的地方。
  13. By dividing the large array antenna into a set of virtual subarray antennas, the receivers are connected to each subarray via a program - controlled switch based on time - division - multiplexing, and process the output snapshots on the subarray - antenna

    陣列天線劃分為虛擬子陣列，基於時分復用工作方式，通過程式控制交換矩陣與接收機連接，接收機對不同虛擬子陣列天線輸出信號分時進行接收處理。
  14. Abstract : by comparing the channel capacities hetwem orthogonal space - time block coding and multi - antenna array system over rayleigh fading channel, some capacity loss for orthogonal space - time block coding is obtained, which is a function of the code rate, the rank of channel matrix and the number of transmitter and receive antennas, although the system of orthogonal space - time block codes is simple and easy to implemented. if is also shown that there is no capacity loss only if both the code rate and the channel matrix rank are all one

    文摘:在研究瑞利衰落條件下正交空時分組編碼通道容量的基礎上，將其與多發送多接收天線系統的通道容量進行了比較.比較結果表明，正交空時分組碼雖編碼簡單，易於實現，但在通道容量方面存在較大的損失，損失的程度與編碼碼率、通道矩陣的秩及收發天線數等因素有關.進一步研究表明只有當編碼碼率和通道矩陣的秩都為1時，才沒有通道容量的損失
  15. This technique combines the edge - based finite - element method with physical optics ( po ) and physical theory of diffraction ( ptd ). the hybrid technique is applied to compute the scattering fields from the electrically large bodies with cracks and cavities on their surfaces. it is also used to analyze the scattering characteristics of microstrip antennas residing in a cavity mounted on metal objects with finite sizes

    本文採用edge - basedfem為基本方法，結合物理光學法（ po ） 、物理繞射理論（ ptd ） 、邊界積分方程（ bi ） 、區域分解技術（ ddm ）和完全匹配層（ pml ）吸收邊界條件等求解方法構成的混合方法，對電磁散射和輻射問題進行了研究，主要包括以下內容：提出了一種edge - basedfem與物理光學方法和物理繞射理論相結合的混合方法? fem po - ptd方法，並將該混合方法應用於帶有腔體或槽縫的電大尺寸導體目標的電磁散射特性分析和位於有限導體目標上的背腔式微帶貼片天線的電磁散射特性分析。
  16. This article according to the acquirement of the system parameters such as : temperature sensitivity 、 angle resolution 、 image forming time etc to design the type and diameter of the antenna ; the receiver type, integral time, rf gain, lpf gain ; the mode of calibration ; the sample frequency and program of the daq ; the scanning time, scan type, etc

    本文根據系統溫度靈敏度、角解析度、成像時間等參數要求，對系統天線類型、直徑，接收機類型、積分時間、射頻增益、視頻放大器增益，定標方式，數據採集卡的采樣頻率、編程及驅動裝置的掃描速度、掃描類型等進行了詳細的分析設計。
  17. To direct beams at users who are moving around, the processor must repeatedly solve the equations with constantly updated information from the antenna array

    為了讓波束能夠瞄準四處移動的用戶，處理器必須不斷更新來自陣列天線的訊息，並且重復進行解方程式的工作。
  18. After studying the computation of the adaptive beam - forming algorithms, a modified method with lower computational complexity is put forward. the research tool of the software matlab is used to validate the feasibility of the above related algorithms

    本文主要的研究手段為採用科學和工程計算語言matlab進行模擬實驗，模擬各類智能天線方法的可行性，得出研究的結論。
  19. In addition, the mom - po hybrid method is proposed to dissect radiation from radome - enclosed antennas and the correction impedance matrix upon which the solution to equivalent currents of radome ' s surface depend is built. a comparative analysis of those methods is finally presented to examine respectively their accuracy as well as computational efficiency

    最後，對矩量法物理光學法的混合演算法分析問題的過程進行討論，給出混合演算法分析帶罩天線輻射問題的具體解決方案，建立混合演算法求解天線罩表面等效電磁流的校正矩陣。
  20. After the discussion of the numerical simulation method based on the fdtd method and the pml technique, the motions of the charges and the electrical field lines were first employed to describe the radiation procedures of the pulse electromagnetic waves. then the causes of how the charges are accelerated and how the motion status of the charges are maintained were further studied from the angle of interaction of charge and field. after these analyses, it was pointed out that the pulse radiation is due to the suddenly occurred time - varying electrical field ( displacement current ) in the open space. this view was further evidenced by two examples : one is the partly resistance loaded antenna, the other is the partly curved antenna. the radiation procedures of the pulse electromagnetic waves of many different situations were simulated throughout this paper with the contours and waveforms of electric field given. these figures are very helpful to the understanding of the radiation mechanism of the pulse electromagnetic waves

    在討論了基於時域有限差分法和完全匹配層技術的數值模擬方法之後，首先從運動電荷和電力線的角度直觀地描述了脈沖電磁波的輻射過程，然後進一步從場與電荷相互作用的角度分析了天線上電荷是如何被加速以及如何維持其運動狀態的，指出了開放空間中突然出現的時變電場（位移電流）是脈沖電磁波輻射的根本原因.文中還對局部電阻加載的天線和局部彎曲的天線進行了研究，以進一步說明上述觀點.對多種情況下的脈沖輻射過程進行了數值模擬，並給出了電場的等高線和空間波形圖，這些圖形對理解脈沖電磁波的輻射機理非常有益
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